I have the stock camera and monitor in mine and I experience a couple of problems from time to time. If driving in heavy rain I get picture deterioration
which I assume is poor connections at the camera. Also, when I am stopped at a traffic light idling with my directional on the picture will "pull" from side to side (like a pincushion control) in sequence with the directional signal, I suspect this too is due to poor connections at the camera. I have basically just lived with this situation rather than disturb the camera for fear of damaging the housing in any attempt to correct.
Tom and Patty
The "Rode Crew"
2004 National RV, Seabreeze 1341, F-53 22K, Chevy Malibu toad.